The Industrial Compensating Shafts (ECI), known as CARDAN AXIS, have the basic function of transmitting the energy generated by the motor to the differential shaft, and, in turn, the differential shaft will transfer this energy received from the ECI to the drives. Composed of two tubular axles, one primary centered on the driving source and the other secondary centered on the traction axle. Its ends have joints called universal movable joints (crossheads).